I will say Bank is a considerate host and friend, definitely recommended. He always replied my messages quickly and help solving my problems like he had thought it over before I asked. It is in a small alley surrounded by a lot of local people and local buildings. The roads are a little bit complicated but all you have to do is follow the map or just grab. The drivers will pick you up wherever you are. By the way, it is 25 minutes walk to train night market Ratchada. We stayed there till late and had a lot of local flavors at surprisingly low price!